/Engine/Source/Runtime/CoreUObject/Public/UObject/Linker.h
Return the full name of theUObjectrepresented by the specified package index
the full name of theUObjectrepresented by the resource at PackageIndex
[FString](API\Runtime\Core\Containers\FString) GetImportFullName ( [FPackageIndex](API\Runtime\CoreUObject\UObject\FPackageIndex) PackageIndex )